Hoping Satoshi to come over is not reasonable since there is no real person "Satoshi" on the earth. It was probably a group of people who developed the blockchain and bitcoin infrastructure.
I will have to take a different view about the thought that Satoshi is a group of people because even on the forum, there is a username by that and have contributed immensely to discussions about bitcoin that even senior members of the forum have left some amount of feedback for him, so if its a group of person, does that mean several people are running the account or one person is the spokesperson of the group. Either way, I don't think he is her coming out that issues like hardfork happen and he didn't, then I doubt if anything else can bring him out.